Distance: 21
Speed: 7
There :3
Answer:
I don't know what the unit of measurement is, so I'll say the distance is 21. As for the average speed, its average speed is 8 per second.
Step-by-step explanation:
hope helpful~
122
5!=5 x 4 x 3 x 2 x 1 = 120
2!=2 x 1 = 2
120+2=122